Photo of the day

Limestone caves like the ones in our photo today are the product of a reaction between on-land chemical weathering and water-dissolved carbon, and they lock this captured carbon in their dark, fossil-filled facades for millions, or even hundreds of millions, of years. This is one part of the slow carbon cycle, a process that uses the ocean as a steady exchange with the atmosphere, helping to sequester and store carbon, protect marine ecosystems, and curb climate change 🪨🥽